Tutorials
1401 articles
TutorialsLangChain LCEL Expression Language Deep Dive: Pipe Operator, RunnableLambda, and Parallel Execution in Practice
Deep dive into LangChain LCEL core concepts: pipe operator internals, RunnableLambda function wrapping, RunnableParallel retrieval, and RunnablePassThrough with complete code examples and RAG practice.
TutorialsLangChain AI Agent in Practice: Complete Tutorial on Streaming Output + Parallel Tool Calling
Learn how to build a production-grade AI Agent chat app with LangChain and FastAPI, covering streaming tokens, asyncio parallel tool calling, SerpAPI async conversion, and structured output.
TutorialsLangChain Streaming Output & Async in Practice: Complete Implementation for Agent Scenarios
Deep dive into LangChain streaming output and async implementation, covering astream usage, custom AsyncQueueCallbackHandler, and Agent streaming executor architecture for production AI apps.
TutorialsPractical Guide to OpenAI Agents SDK Message Types and Conversation History Management
Deep dive into OpenAI Agents SDK's five message types, conversation history management, and common pitfalls including static/dynamic instructions and Function Call pairing.
TutorialsOpenAI Agents SDK Tracing Guide: Zero-Configuration Agent Observability
Learn how to use OpenAI Agents SDK's built-in tracing system for AI Agent observability, covering zero-config auto-tracing, custom trace contexts, and tool call monitoring.
TutorialsClaude Code Agent Teams Practical Guide: 30 Tips for Efficient Collaboration
In-depth analysis of 30 practical tips for Claude Code Agent Teams, covering team formation, task planning, cost control, and file conflict avoidance.
TutorialsClaude Computer Control Best Practices: The Complete Guide to Screenshot Scaling and Coordinate Mapping
Official Anthropic best practices for Claude computer control: screenshot scaling resolution, coordinate mapping code, model pairing, and fixing click offset issues in AI agents.
TutorialsMulti-Agent Applications in Practice: Building AI Multi-Agent Collaborative Workflows from Scratch
A practical guide to building multi-agent collaboration systems, covering assistant creation, skill assignment, group chat mechanisms, and solutions for hallucination in AI workflows.
TutorialsClaude Code Guide for China Users: Get Started from ¥7.9 Without a Credit Card
Guide to using Claude Code in China at low cost without an overseas credit card. Covers installation, API proxies, and budget alternatives starting from ¥7.9.
TutorialsMulti-Agent Systems in Practice: Five Coordination Patterns That Cut Costs by 85%
Deep dive into five multi-agent coordination patterns: cost routing, context isolation, Agent Swarm, Generator-Verifier, and Smart Friend. Real cases show weekly costs dropping from $700 to $100 with 58% critical bug detection.
TutorialsClaude Code Worktree Tutorial: Complete Guide to Multi-Branch Parallel Development
Complete guide to Claude Code Worktree: creation, management, cleanup, .worktreeinclude config, exit behavior, and comparison with Codex for multi-branch parallel development.
TutorialsHow to Use Gemini 3.5 Flash in China? 6 Methods Tested and Working (2025 Latest)
Gemini 3.5 Flash surpasses 3.1 Pro with 4x speed and half the price. Learn 6 tested methods to access Gemini 3.5 from China, including free AI Studio, no-VPN relay services, and API options.
TutorialsGrok 4 Free Access Guide: Zero-Barrier Methods for Users in China
A detailed guide for users in China on how to use Grok 4, ChatGPT, Midjourney, and other mainstream AI models for free through third-party aggregation platforms.
TutorialsHow to Subscribe to Claude Pro? Three Methods Compared with Detailed Tutorials
Compare three Claude Pro subscription methods: third-party top-up platforms, international credit cards, and in-app purchases. Find the best option based on cost, difficulty, and security.
TutorialsSoftware Testing Job Search Guide: Resume Strategies, Interview Tips & AI-Powered Testing in Practice
A complete guide to software testing job searches, covering resume strategies, interview tips, salary-based skill requirements, and AI-powered testing trends.
TutorialsClaude AI Practical Guide: 5 Automated Workflow Case Studies Explained
In-depth analysis of Claude AI automation workflows covering zero-code landing pages, SEO content automation, Twitter data-driven optimization, Skills modules, and browser agents.
TutorialsPython OpenCV Beginner Tutorial: Complete Guide to Reading and Displaying Images
Learn Python OpenCV basics: install opencv-python, read images with imread, display with imshow, handle keyboard input with waitKey, and release resources with destroyAllWindows.
TutorialsUV Project Management in Practice: A Complete Guide to Building Professional Python Projects from Scratch
Learn how to build professional Python projects from scratch using UV, covering pyproject.toml dependency management, project structure, and fixing Module Not Found errors.
TutorialsTrae in Practice: AI Builds a Java Backend Management System from Scratch
A detailed walkthrough of using Trae AI IDE to build a Java Spring Boot admin system from scratch, covering database init, driver debugging, and login fixes.
TutorialsAI-Powered Development in Practice: Building a Python Django Admin System from Scratch
Learn how to use AI programming tools with Python Django and MySQL to build a complete admin system with login auth, menu management, role permissions, and extensible news management module.